In this paper, the design points of petroleum chemical equipment such as tower top, side and bottom piping, manholes layout and the nozzle position are introduced briefly.
本文对石油化工装置设计中塔顶、塔体侧面和塔底管道的设计，人孔布置及管口方位的设计要点做简要介绍。
Their corrosion-resistant properties make them preferable to steel and other metals on an economic basis, for such uses as oil-well drilling equipment, chemical piping, tanks, and similar equipment.
其抗腐性使其在经济上优于钢和其他金属，这类用途有油井钻探设备、化学品管道、贮罐及类似设备。
Their corrosion-resistant properties make them preferable to steel and other metals on an economic basis, for such uses as oil-well drilling equipment, chemical piping, tanks, and similar equipment.
其抗腐性使其在经济上优于钢和其他金属，这类用途有油井钻探设备、化学品管道、贮罐及类似设备。
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